Chemistry: electrical and wave energy – Processes and products
Patent
1981-05-27
1983-03-22
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
204245, C25C 306
Patent
active
043774520
ABSTRACT:
A process and an apparatus is disclosed for controlling the supply of alumina of a cell for the production of aluminum by electrolysis using the Hall-Heroult process wherein each alumina supply orifice of the cell comprises a movable plunger which is electrically insulated from the superstructure of the cell and of which at least the end is electrically conducting and a means for measuring the potential between the end of the movable plunger and a point of the cell which is taken as reference potential. The plunger is moved with an alternating, substantially vertical, upward and downward movement and in each downward movement means detects whether the plunger has come into contact with molten electrolyte or with solidified electrolyte.
In the first case, when molten electrolyte is detected the plunger is raised while in the second case when solidified electrolyte is detected the electrical power supplied to the cell is increased in order to remelt the solidified electrolyte.
REFERENCES:
patent: 3888747 (1975-06-01), Murphy
patent: 4045308 (1977-08-01), White et al.
patent: 4098651 (1978-07-01), Alder
Aluminium de Grece
Williams Howard S.
LandOfFree
Process and apparatus for controlling the supply of alumina to a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and apparatus for controlling the supply of alumina to a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for controlling the supply of alumina to a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1868357